X-ray computed tomography (CT) is a nondestructive three-dimensional (3D) imaging
technique used for studying morphological properties of porous and nonporous materials. In …

There is notable progress in the development of efficient oxygen reduction electrocatalysts,
which are crucial components of fuel cells. However, these superior activities are limited by …

Proton exchange membrane fuel cells (PEMFCs) are leading candidates to decarbonize the
transport sector, but widespread deployment will require improvements in lifetime, fuel …

Ionic liquids (ILs) have shown to be promising additives to the catalyst layer to enhance
oxygen reduction reaction in polymer electrolyte fuel cells. However, fundamental …

Fuel cell heavy-duty vehicles (HDVs) require increased durability of oxygen-reduction-
reaction electrocatalysts, making knowledge of realistic degradation mechanisms critical …

The development of an ultralow-Pt catalyst layer (CL) without sacrificing proton-exchange
membrane (PEM) fuel cell performance and durability is urgently needed to boost fuel cell …

In this work, a fundamental cathode catalyst degradation model is developed in order to
simulate fuel cell stack durability under realistic vehicle operation. A dynamic platinum …

Octahedra (oh) PtNiX/C catalysts are notable cathode catalysts for proton-exchange
membrane fuel cells due to their exceptional oxygen reduction reaction activity. Here, we …

Metal alloy catalysts (eg, Pt–Co) are widely used in fuel cells for improving the oxygen
reduction reaction kinetics. Despite the promise, the leaching of the alloying element …

Simultaneous in situ X-ray diffraction (XRD) and small angle X-ray scattering (SAXS) of
hydrogen fuel cell electrocatalyst layers allows nanoparticle degradation mechanisms of …